EP2416281A3 - Font matching - Google Patents

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Info

Publication number
EP2416281A3
EP2416281A3 EP11175989.0A EP11175989A EP2416281A3 EP 2416281 A3 EP2416281 A3 EP 2416281A3 EP 11175989 A EP11175989 A EP 11175989A EP 2416281 A3 EP2416281 A3 EP 2416281A3
Authority
EP
European Patent Office
Prior art keywords
glyph
processed
received
image prototypes
font matching
Prior art date
Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
Withdrawn
Application number
EP11175989.0A
Other languages
German (de)
French (fr)
Other versions
EP2416281A2 (en
Inventor
Bruce Quincy Hammond
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
Celartem Inc
Original Assignee
Celartem Inc
Priority date (The priority date is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the date listed.)
Filing date
Publication date
Application filed by Celartem Inc filed Critical Celartem Inc
Publication of EP2416281A2 publication Critical patent/EP2416281A2/en
Publication of EP2416281A3 publication Critical patent/EP2416281A3/en
Withdrawn legal-status Critical Current

Links

Classifications

    • G—PHYSICS
    • G06—COMPUTING; CALCULATING OR COUNTING
    • G06V—IMAGE OR VIDEO RECOGNITION OR UNDERSTANDING
    • G06V30/00—Character recognition; Recognising digital ink; Document-oriented image-based pattern recognition
    • G06V30/10—Character recognition
    • G06V30/24—Character recognition characterised by the processing or recognition method
    • G06V30/242—Division of the character sequences into groups prior to recognition; Selection of dictionaries
    • G06V30/244—Division of the character sequences into groups prior to recognition; Selection of dictionaries using graphical properties, e.g. alphabet type or font
    • G06V30/245—Font recognition

Landscapes

  • Engineering & Computer Science (AREA)
  • Computer Vision & Pattern Recognition (AREA)
  • Physics & Mathematics (AREA)
  • General Physics & Mathematics (AREA)
  • Multimedia (AREA)
  • Theoretical Computer Science (AREA)
  • Controls And Circuits For Display Device (AREA)
  • Character Discrimination (AREA)

Abstract

Methods, computer readable media, and apparatuses for font matching are presented. A glyph may be received and processed. The processing of the received glyph may include reducing the glyph, computing bounds associated with the glyph, and normalizing the glyph. The processed glyph may be compared to a repository of image prototypes. The comparison may include determining a distance of the processed glyph from one or more the image prototypes, sorting the determined distances, and selecting one or more of the image prototypes based on the determined distances. Additional techniques may be used to enhance the resolution or accuracy associated with the various methods and algorithms.
EP11175989.0A 2010-08-02 2011-07-29 Font matching Withdrawn EP2416281A3 (en)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
US12/848,246 US8488886B2 (en) 2010-08-02 2010-08-02 Font matching

Publications (2)

Publication Number Publication Date
EP2416281A2 EP2416281A2 (en) 2012-02-08
EP2416281A3 true EP2416281A3 (en) 2014-01-22

Family

ID=44910037

Family Applications (1)

Application Number Title Priority Date Filing Date
EP11175989.0A Withdrawn EP2416281A3 (en) 2010-08-02 2011-07-29 Font matching

Country Status (4)

Country Link
US (1) US8488886B2 (en)
EP (1) EP2416281A3 (en)
JP (1) JP5885956B2 (en)
CN (1) CN102375883B (en)

Families Citing this family (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN102681978A (en) * 2012-05-15 2012-09-19 深圳市万兴软件有限公司 Method and system for displaying text in PDF (portable document format) document
CN112052647B (en) * 2019-06-05 2024-07-26 珠海金山办公软件有限公司 Document editing method and device, electronic equipment and readable storage medium
US11687626B2 (en) 2020-06-17 2023-06-27 Capital One Services, Llc System and method for securing a browser against font usage fingerprinting

Citations (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US5091968A (en) * 1990-12-28 1992-02-25 Ncr Corporation Optical character recognition system and method
US5237627A (en) * 1991-06-27 1993-08-17 Hewlett-Packard Company Noise tolerant optical character recognition system
US20080199081A1 (en) * 2007-02-21 2008-08-21 Fuji Xerox Co., Ltd. Image processing apparatus, image processing method and computer-readable medium

Family Cites Families (11)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPH0484380A (en) * 1990-07-27 1992-03-17 Ricoh Co Ltd Character recognizing device
JPH04219883A (en) * 1990-12-20 1992-08-10 Nec Corp Type character recognition device
JP3329528B2 (en) * 1993-09-20 2002-09-30 株式会社東芝 Document reader
JP3819074B2 (en) * 1996-07-02 2006-09-06 富士写真フイルム株式会社 Character recognition device
JP3815704B2 (en) * 1997-10-28 2006-08-30 株式会社リコー Graphic classification processing method, graphic search processing method, graphic classification system, graphic search system, graphic classification feature extraction processing method, graphic classification table creation processing method, information recording medium, evaluation process of similarity or difference between graphics Method, figure normalization processing method, and figure correspondence processing method
JP2000076378A (en) * 1998-08-27 2000-03-14 Victor Co Of Japan Ltd Character recognizing method
US6337924B1 (en) * 1999-02-26 2002-01-08 Hewlett-Packard Company System and method for accurately recognizing text font in a document processing system
EP1093058A1 (en) * 1999-09-28 2001-04-18 Cloanto Corporation Method and apparatus for processing text and character data
US7907783B2 (en) * 2007-01-24 2011-03-15 Samsung Electronics Co., Ltd. Apparatus and method of matching symbols in a text image coding and decoding system
US8224092B2 (en) * 2008-07-08 2012-07-17 Xerox Corporation Word detection method and system
JP2010224145A (en) * 2009-03-23 2010-10-07 Seiko Epson Corp Information processing apparatus, control device, and program

Patent Citations (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US5091968A (en) * 1990-12-28 1992-02-25 Ncr Corporation Optical character recognition system and method
US5237627A (en) * 1991-06-27 1993-08-17 Hewlett-Packard Company Noise tolerant optical character recognition system
US20080199081A1 (en) * 2007-02-21 2008-08-21 Fuji Xerox Co., Ltd. Image processing apparatus, image processing method and computer-readable medium

Non-Patent Citations (5)

* Cited by examiner, † Cited by third party
Title
"IBM Informix Dynamic Server v11.10 Information Center", 17 June 2007 (2007-06-17), IBM Information Center, XP055090442, Retrieved from the Internet <URL:http://publib.boulder.ibm.com/infocenter/idshelp/v111/index.jsp?topic=/com.ibm.dbext.doc/dbext202.htm> [retrieved on 20131127] *
"Outlier - Wikipedia, the free encyclopedia", 13 July 2010 (2010-07-13), Wikipedia, XP055090453, Retrieved from the Internet <URL:http://en.wikipedia.org/w/index.php?title=Outlier&oldid=373215114> [retrieved on 20131127] *
AHMADI A ET AL: "A Learning OCR System Using Short/Long-term Memory Approach and Hardware Implementation in FPGA", EVOLUTIONARY COMPUTATION, 2006. CEC 2006. IEEE CONGRESS ON, 16 July 2006 (2006-07-16), VANCOUVER, BC, CANADA 16-21 JULY 2006, PISCATAWAY, NJ, USA,IEEE, PISCATAWAY, NJ, USA, pages 687 - 693, XP010936271, ISBN: 978-0-7803-9487-2, DOI: 10.1109/CEC.2006.1688378 *
ALI AHMADI ET AL: "Associative Memory Based Hardware Design for An OCR System and Prototyping with FPGA", PROCEEDINGS OF THE FOURTH HIROSHIMA INTERNATIONAL WORKSHOP ON NANOELECTRONICS FOR TERA-BIT INFORMATION PROCESSING, 16 September 2005 (2005-09-16), pages 56 - 57, XP055090256, Retrieved from the Internet <URL:http://www.rcns.hiroshima-u.ac.jp/21coe/E/9doc/doc4.html> [retrieved on 20131126] *
H. BUNKE; P. S. P. WANG: "Handbook of Character Recognition and Document Image Analysis", 1 January 1997, WORLD SCIENTIFIC, Singapore, ISBN: 981-02-2270-X, pages: 17-24,49-52,321 - 326,606, XP002717249 *

Also Published As

Publication number Publication date
US20120027308A1 (en) 2012-02-02
JP5885956B2 (en) 2016-03-16
JP2012048711A (en) 2012-03-08
CN102375883A (en) 2012-03-14
CN102375883B (en) 2016-04-06
EP2416281A2 (en) 2012-02-08
US8488886B2 (en) 2013-07-16

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